+#!/usr/bin/tk
+
+proc manyset {list args} {
+ foreach val $list var $args {
+ upvar 1 $var my
+ set my $val
+ }
+}
+
+set foolist {
+ 7 11 1 M
+ 13 17 0 a
+ 19 23 0 n
+}
+set unk_l 25
+set unk_r 29
+set unk_context 0
+
+
+
+set mul 6
+set inter 1
+set rhsmost_max -1
+
+set f [open text.xpm]
+set o {}
+set y -3
+while {[gets $f l] >= 0} {
+ if {![regexp {^"(.*)",$} $l dummy l]} {
+ append o "$l\n"
+ continue
+ }
+ if {$y==-3} {
+ manyset $l cols rows colours cpp
+ #assert {$colours==2}
+ #assert {$cpp==1}
+ set mulcols [expr {$cols*$mul+$inter}]
+ set mulrows [expr {$rows*$mul+$inter}]
+ append o "\"$mulcols $mulrows 9 1\",\n"
+ for {set x 0} {$x<$cols} {incr x} { set wordmap($x) 0 }
+ } elseif {$y==-2} { # first pixel
+ append o \
+"\"+ c #111\",
+\"a c #800\",
+\"A c #fcc\",
+\"b c #00c\",
+\"B c #fff\",
+\"u c #000\",
+\"U c #ff0\",
+\"q c #000\",
+\"Q c #ff0\",\n"
+ } elseif {$y==-1} { # 2nd pixel but we've already printed ours
+ } else {
+ set ybit [expr {1<<$y}]
+ set x 0
+ set ol "\"+"
+ set olh $ol
+ foreach c [split $l ""] {
+ set how "u"
+ if {$x >= $unk_l && $x <= $unk_r} {
+ set how q
+ } else {
+ set ab 0
+ foreach {min max context got} $foolist {
+ set rhsmost_max $max
+ if {$x >= $min && $x <= $max} {
+ set how [lindex {a b} $ab]
+ break
+ }
+ set ab [expr {!$ab}]
+ }
+ }
+ switch -exact $c {
+ " " { set p $how }
+ "o" {
+ set p [string toupper $how]
+ incr wordmap($x) $ybit
+ }
+ default { error "$c ?" }
+ }
+ append ol "[string repeat $p [expr {$mul-$inter}]][
+ string repeat + $inter]"
+ append olh [string repeat + $mul]
+ incr x
+ }
+ set ole "\",\n"
+ append ol $ole
+ append olh $ole
+ set olhn [string repeat $olh $inter]
+ if {!$y} { append o $olhn }
+ append o [string repeat $ol [expr {$mul-1}]]
+ append o $olhn
+ }
+ incr y
+}
+
+#puts $o
+
+set xpm [exec xpmtoppm << $o]
+
+set gotsh 20
+set csrh 20
+
+frame .d -width $mulcols -height [expr {$csrh+$mulrows+$gotsh}]
+
+set mi [image create photo -data $xpm]
+label .d.mi -image $mi -borderwidth 0
+
+frame .d.csr -bg black -width $mulcols -height $csrh
+frame .d.got -bg black -width $mulcols -height $gotsh
+
+foreach {min max context got} $foolist {
+ frame .d.got.m$min -bd 0 -background \#888
+ label .d.got.m$min.l -text "$got" -fg white -bg black -bd 0
+ pack .d.got.m$min.l -padx 1 -pady 1
+ place .d.got.m$min -x [expr {$min*$mul+$inter}] -y 0
+}
+
+set imcsr [image create bitmap -data \
+{#define csr_width 11
+#define csr_height 11
+static unsigned char csr_bits[] = {
+ 0x20, 0x00, 0x20, 0x00, 0x20, 0x00, 0x21, 0x04, 0x22, 0x02, 0x25, 0x05,
+ 0xaa, 0x02, 0x74, 0x01, 0xa8, 0x00, 0x70, 0x00, 0x20, 0x00};
+}]
+
+frame .d.csr.csr
+label .d.csr.csr.l -image $imcsr -compound left
+entry .d.csr.csr.e -bd 0
+pack .d.csr.csr.l -side left
+
+frame .d.csr_0 -bg white -height $mulrows -width 1
+frame .d.csr_1 -bg white -height $mulrows -width 1
+
+place .d.csr -x 0 -y 0
+place .d.mi -x 0 -y $csrh
+place .d.got -x 0 -y [expr {$csrh+$mulrows}]
+pack .d
+
+frame .help
+pack .help
+
+set cur_already [expr {[llength $foolist]/4-1}]
+set cur_mode 1 ;# one of: 0 1 already text
+
+set cur_0 $unk_l
+set cur_1 [expr {$unk_r+1}]
+set last_ht {}
+
+proc helptext {t} {
+ global last_ht
+ if {![string compare $t $last_ht]} return
+ eval destroy [grid slaves .help]
+ set y 0; foreach l $t {
+ set x 0; foreach c $l {
+ set w .help.at${x}x${y}
+ label $w -text $c
+ grid $w -row $y -column $x -padx 5
+ incr x
+ }
+ incr y
+ }
+ set last_ht $t
+}
+
+proc recursor/0 {} { recursor//01 0 }
+proc recursor/1 {} { recursor//01 1 }
+proc recursor//01 {z1} {
+ global mul rhsmost_max cols foolist
+ upvar #0 cur_$z1 cur
+ .d.csr.csr.l configure -text {adjust}
+ place .d.csr.csr -x [expr {$cur*$mul - 7}]
+ bind_key space { othercursor }
+ bind_leftright cur_$z1 0 [expr {$cols-1}]
+ if {[llength $foolist]} {
+ bind_key Tab { set cur_mode already; recursor }
+ } else {
+ bind_key Tab {}
+ }
+ bind_key Return {
+ if {$cur_0 != $cur_1} {
+ set cur_mode text
+ recursor
+ }
+ }
+ helptext {
+ {{<- ->} {move cursor, adjusting area to define}}
+ {Space {switch to moving other cursor}}
+ {Return {confirm location, enter letter(s)}}
+ {Tab {switch to correcting earlier ocr}}
+ }
+}
+proc othercursor {} {
+ global cur_mode
+ set cur_mode [expr {!$cur_mode}]
+ recursor
+}
+
+proc recursor/text {} {
+ helptext {
+ {Return {confirm entry of new glyph}}
+ {Escape {abandon entry}}
+ }
+ unbind_all_keys
+ .d.csr.csr.l configure -text {define:}
+ pack .d.csr.csr.e -side left
+ focus .d.csr.csr.e
+ bind_key Return {
+ binary scan [.d.csr.csr.e get] h* hex
+ if {[string length $hex]} {
+ RETURN_RESULT DEFINE "$cur_0 $cur_1 $hex"
+ }
+ }
+ bind_key Escape {
+ bind_key Escape {}
+ pack forget .d.csr.csr.e
+ set cur_mode 1
+ recursor
+ }
+}
+
+proc recursor/already {} {
+ global mul
+ global foolist
+ global cur_already mul
+ global foolist cur_already mul
+ .d.csr.csr.l configure -text {correct}
+ set rmax [lindex $foolist [expr {$cur_already*4}]]
+ place .d.csr.csr -x [expr {$rmax*$mul-3}]
+ bind_key Return {}
+ bind_key space {}
+ bind_leftright cur_already 0 [expr {[llength $foolist]/4-1}]
+ bind_key Tab { bind_key Delete {}; set cur_mode 1; recursor }
+ bind_key Delete {
+ RETURN_RESULT DELETE [lrange $foolist \
+ [expr $cur_already*4] \
+ [expr $cur_already*4+1]]
+ }
+ helptext {
+ {{<- ->} {move cursor, selecting glyph to correct}}
+ {Del {clear this glyph from the recognition database}}
+ {Tab {switch to selecting area to define as new glyph}}
+ }
+}
+
+proc bind_key {k proc} {
+ global keybindings
+ bind . <Key-$k> $proc
+ set keybindings($k) [expr {!![string length $proc]}]
+}
+proc unbind_all_keys {} {
+ global keybindings
+ foreach k [array names keybindings] { bind_key $k {} }
+}
+
+proc bind_leftright {var min max} {
+ bind_key Left [list leftright $var $min $max -1]
+ bind_key Right [list leftright $var $min $max +1]
+}
+proc leftright {var min max inc} {
+ upvar #0 $var v
+ set vnew $v
+ incr vnew $inc
+ if {$vnew < $min || $vnew > $max} return
+ set v $vnew
+ recursor
+}
+
+proc recursor {} {
+ global csrh cur_mode cur_0 cur_1 mul
+ foreach z1 {0 1} {
+ place .d.csr_$z1 -y $csrh -x [expr {[set cur_$z1] * $mul}]
+ }
+ recursor/$cur_mode
+}
+
+
+# database format:
+# series of glyphs:
+# <context> <ncharacters> <hex>...
+# width
+# <hex-bitmap>
+
+# $database($context 0x<bits> 0x<bits>...) = $hex
+
+proc read_database {} {
+ global database
+ set f [open database r]
+ while {[gets $f l] >= 0} {
+ if {![regexp {^(\w+) (\d+) ([0-9a-f]{2}+)$} $l \
+ dummy context strl strh]} {
+ error "bad syntax"
+ }
+ binary scan $strw h* strh
+ if {[string length $strh] != $strl*2} { error "$strh $strl" }
+ gets $f l; set width [format %d $l]
+ set bm $context
+ for {set x 0} {$x < $width} {incr x} {
+ gets $f l; lappend bm [format %x 0x$l]
+ }
+ set database($bm) $strh
+ }
+}
+
+proc write_database {} {
+ global database
+ set ol {}
+ foreach bm [array names database] {
+ set strh $database($bm)
+ set strs [binary format h* $strh]
+ set strdo [format "%d %s" [expr {[string length $strh]/2}] $strh]
+ set o "[lindex $bm 0] $strdo\n"
+ append o [format "%d\n" [expr {[llength $bm]-1}]]
+ foreach x [lrange $bm 1 end] { append o "$x\n" }
+ lappend ol $o
+ }
+ foreach o [lsort $ol] {
+ puts -nonewline $o
+ }
+}
+
+proc update_database/DEFINE {c0 c1 strh} {
+ global foolist unk_l unk_context wordmap database
+ if {$c0 > $c1} { manyset [list $c0 $c1] c1 c0 }
+ if {$c0 == $unk_l} {
+ set ncontext $unk_context
+ } else {
+ foreach {l r context got} $foolist {
+ if {$l==$c0} { set ncontext $context; break }
+ }
+ if {![exists ncontext]} {
+ puts stderr "must start at letter LHS!"
+ return
+ }
+ }
+ set bm $ncontext
+ for {set x $c0} {$x < $c1} {incr x} {
+ lappend bm [format %x $wordmap($x)]
+ }
+ set database($bm) $strh
+ write_database
+}
+
+
+proc RETURN_RESULT {how what} {
+ place forget .d.csr.csr
+ pack forget .d.csr.csr.e
+ helptext {{{ Processing }}}
+ unbind_all_keys
+ update idletasks
+ puts "$how $what"
+ eval update_database/$how $what
+}
+
+# bind . <Key-space> {}
+
+read_database
+recursor